FF Creator Pro Primes with blob on bed not a line

[wirlybird]

I have a new FF creator pro and when it primes the left extruder it does so in a big blob on the bed which results in the nozzle getting coated in plastic. Is this a normal behavior? My other printer primes with a line.

Thanks for any thoughts.

[CompoundCarl]

Yup, that's just the starting script. You can easily edit it if you want.

[wirlybird]

Yup, that's just the starting script. You can easily edit it if you want.

That's what I thought. I'll look into figuring out an edit. Thanks for the tip.

[pauldebra]

In the gcode near the end I changed the G1 lines to:
G1 X110 Y-70 E4 F300 ; move nozzle
G1 X120 Y-70 Z0.15 F1200 ; slow wipe
G1 X110 Y-70 Z0.5 F1200 ; lift

This extrudes just a bit and draws it as a line.

[wirlybird]

In the gcode near the end I changed the G1 lines to:
G1 X110 Y-70 E4 F300 ; move nozzle
G1 X120 Y-70 Z0.15 F1200 ; slow wipe
G1 X110 Y-70 Z0.5 F1200 ; lift

This extrudes just a bit and draws it as a line.

Thanks, I'll give this a try. Hopefully this will be better than the blob it spurts out. That is the stupidest thing. It makes a huge blob, buries the nozzle in it then drags it all over the bed wreaking the start of every print.

[wirlybird]

Not any better. It still drags a big string of material to the print start and it gets all tangled in the first layers of the print.

[dorsai3d]

Might want to bump up the E value to create a thicker purge line that adheres to the bed better. The line not sticking sounds characteristic of being too far from the bed for the amount extruded.

[wirlybird]

In the gcode near the end I changed the G1 lines to:
G1 X110 Y-70 E4 F300 ; move nozzle
G1 X120 Y-70 Z0.15 F1200 ; slow wipe
G1 X110 Y-70 Z0.5 F1200 ; lift

This extrudes just a bit and draws it as a line.

Thanks, I'll give this a try. Hopefully this will be better than the blob it spurts out. That is the stupidest thing. It makes a huge blob, buries the nozzle in it then drags it all over the bed wreaking the start of every print.

Didn't do any line just a smaller blob but it still drags a string from it which turns into a rats nest at the beginning of the print.

[wirlybird]

Might want to bump up the E value to create a thicker purge line that adheres to the bed better. The line not sticking sounds characteristic of being too far from the bed for the amount extruded.

There is no line just a blob at the near right corner then it immerses the nozzle in it moves the nozzle back and forth in the blob then then drags a string across the bed that ends up tangled in the first layer of the print.

[wirlybird]

Here is my last lines of script. These are the default for this Flashforge Creator Pro. Below this are the last lines for my QIDI Tech-1, could I substitute these lines ok?

G1 Z0.4 ; position nozzle
M135 T1 ; left tool
G1 X110 Y-70 E30 F300 ; move nozzle
G1 X120 Y-70 Z0.15 F1200 ; slow wipe
G1 X110 Y-70 Z0.5 F1200 ; lift
G92 A0 B0 ; zero extruders
M73 P1 ;@body (notify GPX body has started)
; **** end of start.gcode ****


G1 X-100 Y-68 F9000 ; Move to front left corner of bed
G1 Z0.3 F6000 ; Move down to purge
G1 X90 Y-68 E24 F2000 ; Extrude a line of filament across the front edge of the bed
G1 X100 Y-68 F180 ; Wait for ooze
G1 X110 Y-68 F5000 ; Fast wipe
G1 Z1 F100 ; Lift
G92 A0 B0 ; Zero extruders
M73 P1 ; @body (notify GPX body has started)